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World of Warcraft Item Upgrades Item upgrades are items that can be slotted into trinkets, weapons, and armor to add an extra boost to your stats. They are available through missions, vendors, and the Trading Post. Upgrading gear is one the main ways to increase the effectiveness of your character or ship in combat. The gear that is upgraded increases in Mark Level and rarity. Upgrade components Upgrade components are items that can be slotted into armor, weapons, trinkets, and gathering tools to provide additional bonuses. c